STM32F429驱动gt911电容屏（5寸）

quanenmeng

请教！！！用的gt911电容触摸屏（5寸），分辨率800*480，读出的x轴坐标范围为260到800，y轴坐标范围为100到480。为什么XY坐标不是从0开始？？可能出现的问题在哪？？下面贴出我的配置表：

const u8 GT911_CFG_TBL[]=   
{
  0x68,0x20,0x03,0xe0,0x01,0x05,0x3D,0x00,0x01,0x48,
  0x28,0x0D,0x50,0x32,0x03,0x05,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x18,0x1A,0x1E,0x14,0x8A,0x2A,0x0C,
  0x30,0x38,0x31,0x0D,0x00,0x00,0x02,0xB9,0x03,0x2D,
  0x00,0x00,0x00,0x00,0x00,0x03,0x64,0x32,0x00,0x00,
  0x00,0x1D,0x41,0x94,0xC5,0x02,0x07,0x00,0x00,0x04,
  0xA5,0x1F,0x00,0x94,0x25,0x00,0x88,0x2B,0x00,0x7D,
  0x33,0x00,0x74,0x3C,0x00,0x74,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x18,0x16,0x14,0x12,0x10,0x0E,0x0C,0x0A,
  0x08,0x06,0x04,0x02,0xFF,0xFF,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x24,0x22,0x21,0x20,0x1F,0x1E,0x1D,0x1C,
  0x18,0x16,0x13,0x12,0x10,0x0F,0x0A,0x08,0x06,0x04,
  0x02,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,

};

v8second

一般都是配置表的问题。你这个配置表是厂家给的？

lutigers

飘过一下

secret

感谢楼主，我用楼主的配置表，能正常触屏了。也是GT911，5寸的触摸屏。GD32F307VET6驱动的。

secret

确实有点奇怪，有时能正常，有时Y也是从100开始的。

secret

贴出我这边GT911的配置表，厂家新给的参数。上下左右有约5个像素点左右的裁边，

        0x00,0x20,0x03,0xE0,0x01,0x05,0x0D,0x00,0x01,0x0A,
        0x28,0x0F,0x50,0x32,0x03,0x05,0x00,0x00,0x00,0x00,
        0x00,0x00,0x08,0x17,0x19,0x1C,0x14,0x8A,0x2A,0x0C,
        0x2A,0x2C,0x31,0x0D,0x00,0x00,0x01,0x9A,0x02,0x2D,
        0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x1E,0x3C,0x94,0xC5,0x02,0x07,0x00,0x00,0x04,
        0x9E,0x20,0x00,0x8D,0x25,0x00,0x7F,0x2A,0x00,0x73,
        0x30,0x00,0x67,0x38,0x00,0x67,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x18,0x16,0x14,0x12,0x10,0x0E,0x0C,0x0A,
        0x08,0x06,0x04,0x02,0xFF,0xFF,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x24,0x22,0x21,0x20,0x1F,0x1E,0x1D,0x1C,
        0x18,0x16,0x13,0x12,0x10,0x0F,0x0A,0x08,0x06,0x04,
        0x02,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,//0xF4,0x01  F4是校验值的补码，01是更新标志